offlinewebtools.com — free, watermark-free browser tools that stay on your device with nothing uploading to our servers

AVI to MP4 Converter

Convert legacy AVI video files to modern MP4 format with better compression and universal compatibility.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Source file

Files are processed locally in your browser using WebAssembly.

Quality (CRF)

Lower = better quality (0-51, default: 23)

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.